Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Indian River Estates experiences a subtle adjustment in high-temperatures to a warm 85.5°F (29.7°C) with the onset of September, maintaining near parity with August's 87.4°F (30.8°C). In Indian River Estates, September is characterized by an average low-temperature of 77.5°F (25.3°C), indicating a minor drop from daytime highs.Heat index
In September, the heat index is computed to be a very hot 96.8°F (36°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The average relative humidity in September is 78%.Rainfall
In Indian River Estates, in September, during 24.5 rainfall days, 3.78" (96mm) of precipitation is typically accumulated. Throughout the year, there are 214.6 rainfall days, and 33.9" (861mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:08 pm EDT.
Sunshine
In Indian River Estates, the average sunshine in September is 8.9h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 7 in September leads to these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Indian River Estates in September?
What is the average humidity in September in Indian River Estates?
How much does it rain in Indian River Estates in September?
What is the average length of the day in September in Indian River Estates?
What time are sunrise and sunset in September in Indian River Estates?
How long on average sun shines in September in Indian River Estates?
When is the highest UV index in Indian River Estates?
How high is the UV index in September in Indian River Estates?
Average temperature in September
Indian River Estates, FL
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (71.1°F).
- Average low temperature in September: 77.5°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (59.9°F).
Average pressure in September
Indian River Estates, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Indian River Estates, FL
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Indian River Estates, FL
- Average humidity in September: 78%
The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Indian River Estates, FL
- Average rainfall in September: 3.78"
The wettest month (with the highest rainfall) is August (5.71").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in September
Indian River Estates, FL
- Average rainfall days in September: 24.5 days
The month with the highest number of rainy days is August (26 days).
The month with the least rainy days is February (11 days).
Average daylight in September /
Average sunshine in September
Indian River Estates, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Indian River Estates, FL
- Average sunshine days in September: 3.5 days
The month with the most sunshine days is January (15.5 days).
The month with the least sunshine days is August (2.8 days).
Average UV index in September
Indian River Estates, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in September
Indian River Estates, FL
- Average cloud cover in September: 30
The months with the most cloud cover are January, November and December (Cloud cover 35).
The months with the least cloud cover are May and August (Cloud cover 27).
Average visibility in September
Indian River Estates, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Indian River Estates, Florida, USA
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